Answer:
there is nothing attached??
x/20 = 21/14 (similar proportions)
x/20 = 3/2 (simplify by canceling out a factor of 7)
x = 30
x=33.4
Step-by-step explanation:
b-7/4=-2/3
+7/4 +7/4
b=13/12
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hope it helps
